| 摘要 |
PROBLEM TO BE SOLVED: To enable demolding using a sleeve by a simple mechanism and a simple action without enlarging a mold. SOLUTION: A movable core 23 is inserted into the through hole 26 of a movable side member 24, and a molding part cavity 27 is formed. The sleeve 28 for ejection is engaged slidably with the outer peripheral part of the movable core 23, and the movable core 23 is held by a core holding member 29 and fixed to the movable side member 24. In order to make the sleeve 28 vertically movable, a lifting member 33 is installed at a position below the core holding member 29, and they are connected by a bolt 34. An ejector plate 36 is set on a movable base 20, and the lifting member 33 is housed in the recess 40 of the plate 36 to be pushed up by a pushing rod 41. COPYRIGHT: (C)2006,JPO&NCIPI
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